Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT SBC 350

$597.56

SKU: U00B KB198KTM.020

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

Keith Black Hypereutectic pistons (KB198KTM.020 / KB198-020) for Small Block Chevy 350 engines feature a 4.020" bore, 3.480" stroke, 5.700" rod length, and 9.025" OE deck height. They are flat-top pistons with a 6.5cc head volume, made from a low expansion 390 alloy with 16 percent silicon, ideal for high-performance street, marine, drag, or towing applications. Includes wrist pins and spiral locks; rings are not included. Advertised piston weight is 557 grams, and wrist pin weight is 145 grams.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB198KTM.020

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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